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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Istrouma, Louisiana, is a moderate winter month, with an average temperature ranging between max 58.6°F (14.8°C) and min 42.4°F (5.8°C). January, with average temperatures reaching a high of 58.6°F (14.8°C) and a low of 42.4°F (5.8°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is an enjoyable month in Istrouma, Louisiana, with an average temperature ranging between min 47.7°F (8.7°C) and max 63.5°F (17.5°C). Istrouma's shift into February sets the average high-temperature at a still refreshing 63.5°F (17.5°C), a figure that deviates only slightly from January's 58.6°F (14.8°C). Weather in February »
Weather in March
March, the first month of the spring in Istrouma, is a pleasant month, with an average temperature ranging between min 52.5°F (11.4°C) and max 71.2°F (21.8°C). As Istrouma enters March, the average high-temperature marginally increases from the a refreshing 63.5°F (17.5°C) of February to an agreeable 71.2°F (21.8°C). Weather in March »
Weather in April
April in Istrouma, Louisiana, is a warm spring month, with an average temperature fluctuating between 78.4°F (25.8°C) and 58.1°F (14.5°C). Istrouma in April observes a minor temperature shift, with average high-temperatures adjusting from a pleasant 71.2°F (21.8°C) in March to a moderately hot 78.4°F (25.8°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Istrouma, Louisiana, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 85.6°F (29.8°C). A subtle rise in the average high-temperature is observed during May, adjusting from 78.4°F (25.8°C) in April to a still moderately hot 85.6°F (29.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in Istrouma, Louisiana, with an average temperature fluctuating between 71.8°F (22.1°C) and 91.2°F (32.9°C). Istrouma observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's warm 85.6°F (29.8°C) to a hot 91.2°F (32.9°C). Weather in June »
Weather in July
July, the same as June, in Istrouma, Louisiana, is another hot summer month, with temperature in the range of an average low of 73.8°F (23.2°C) and an average high of 91.9°F (33.3°C). July and August are the warmest months, with an average high-temperature of 91.9°F (33.3°C). July's average heat index is calculated to be a life-threatening hot 118.4°F (48°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Istrouma, Louisiana, with an average temperature ranging between max 91.9°F (33.3°C) and min 73.9°F (23.3°C). During July and August, Istrouma experiences its peak temperatures, averaging a high-temperature of 91.9°F (33.3°C). In August, the heat index is calculated to be a blazing hot 118.4°F (48°C). Weather in August »
Weather in September
September, the first month of the autumn in Istrouma, is still a tropical month, with an average temperature fluctuating between 70°F (21.1°C) and 88°F (31.1°C). Istrouma's weather, upon September's arrival, documents an average high-temperature of a still tropical 88°F (31.1°C), nearly identical to the prior month. Weather in September »
Weather in October
October, like September, in Istrouma, Louisiana, is another warm autumn month, with an average temperature ranging between min 60.1°F (15.6°C) and max 80.2°F (26.8°C). Istrouma in October undergoes a slight reduction in the average high-temperature, shifting from September's hot 88°F (31.1°C) to a warm 80.2°F (26.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another pleasant month in Istrouma, Louisiana, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 68.4°F (20.2°C). The arrival of November signals a shift in temperature, down from a warm 80.2°F (26.8°C) in October to an agreeable 68.4°F (20.2°C). Weather in November »
Weather in December
The first month of the winter, December, is still a comfortable month in Istrouma, Louisiana, with an average temperature varying between 46.4°F (8°C) and 61.5°F (16.4°C). The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from an agreeable 68.4°F (20.2°C) in November to a comfortable 61.5°F (16.4°C). Weather in December »
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
January, having an average high-temperature of 58.6°F (14.8°C) and an average low-temperature of 42.4°F (5.8°C), is the coldest month.
How much does it rain?
Throughout the year, there are 177.1 rainfall days, and 36.1" (917mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January and December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 0.3 days and typically aggregates up to 0.28" (7mm) of snow.
How many days does it snow?
Throughout the year, there are 0.5 snowfall days, and 0.51" (13mm) of snow is accumulated.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the most humid month?
With an average relative humidity of 82%, February is the most humid month.
When it does not snow?
February through November are months without snowfall.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 7.
When are the longest days?
June has the longest days of the year, with an average of 14h and 6min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.2h of sunshine.
What are the warmest months in Istrouma?
In Istrouma, July and August are characterised by the peak of temperatures, recording an average high of 91.9°F (33.3°C).
What is the rainiest month in Istrouma?
July is the month with the most rainfall. Rain falls for 22.5 days and accumulates 4.72" (120mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 72%.
What is the driest month?
The month with the least rainfall is November, when the rain falls for 8.8 days and typically collects 1.77" (45mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 12min of daylight.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 5h of sunshine.
Average temperature
Istrouma, LA
The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (58.6°F).
The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure
Istrouma, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed
Istrouma, LA
- Average wind speed in January:
6.4mph - Average wind speed in February:
6.6mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.3mph - Average wind speed in June:
4.7mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.6mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.9mph - Average wind speed in December:
6.3mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity
Istrouma, LA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Istrouma, LA
- Average rainfall in January:
2.83" - Average rainfall in February:
2.56" - Average rainfall in March:
2.36" - Average rainfall in April:
2.68" - Average rainfall in May:
2.83" - Average rainfall in June:
3.15"
- Average rainfall in July:
4.72" - Average rainfall in August:
4.57" - Average rainfall in September:
2.95" - Average rainfall in October:
2.32" - Average rainfall in November:
1.77" - Average rainfall in December:
3.35"
The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days
Istrouma, LA
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
22.5 days - Average rainfall days in August:
22.2 days - Average rainfall days in September:
17.6 days - Average rainfall days in October:
10 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
13.4 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Istrouma, LA
The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
Istrouma, LA
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Istrouma, LA
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 4min - Average daylight in June:
14h and 1min
- Average daylight in July:
13h and 5min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 4min - Average daylight in December:
10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 1min - Average sunshine in March:
7h and 2min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 3min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Istrouma, LA
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
14 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
7.3 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
10.4 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are July and August (7.3 days).
Average UV index
Istrouma, LA
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Istrouma, LA
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility
Istrouma, LA
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Istrouma, Louisiana, USA
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